TalentSmart has tested more than a million people and found that the upper echelons of top performance are filled with people who are high in emotional intelligence (90% of top performers, to be exact). The hallmark of emotional intelligence is self-control—a skill that unleashes massive productivity by keeping you focused and on track.

Unfortunately, self-control is a difficult skill to rely on. Self-control is so fleeting for most people that when Martin Seligman and his colleagues at the University of Pennsylvania surveyed two million people and asked them to rank order their strengths in 24 different skills, self-control ended up in the very bottom slot.

And when your self-control leaves something to be desired, so does your productivity.